207639530140 has 24 divisors (see below), whose sum is σ = 498334872672. Its totient is φ = 71190696000.

The previous prime is 207639530123. The next prime is 207639530243. The reversal of 207639530140 is 41035936702.

It is a happy number.

207639530140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×207639530140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 207639530093 and 207639530102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741569611 + ... + 741569890.

It is an arithmetic number, because the mean of its divisors is an integer number (20763953028).

Almost surely, 2^207639530140 is an apocalyptic number.

207639530140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207639530140 is an abundant number, since it is smaller than the sum of its proper divisors (290695342532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207639530140 is a wasteful number, since it uses less digits than its factorization.

207639530140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483139517 (or 1483139515 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 207639530140 in words is "two hundred seven billion, six hundred thirty-nine million, five hundred thirty thousand, one hundred forty".